Perhaps you should try some spelling variations:
"level coding algorithm" » "level cosine algorithm" (Expand Search), "level modeling algorithm" (Expand Search), "level finding algorithm" (Expand Search), "level according algorithm" (Expand Search), "level using algorithm" (Expand Search)
"implementing ii algorithm" » "implementing _ algorithm" (Expand Search), "implementing a algorithm" (Expand Search), "implementing df algorithm" (Expand Search), "implementing _ algorithms" (Expand Search)
"elements crcy algorithm" » "elements carlo algorithm" (Expand Search), "elements cscap algorithm" (Expand Search), "elements each algorithm" (Expand Search)

Try widening your search to All Fields.

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